Adding-machine.



- B'ATENTED SEPT. s, 1908.

No. 898,282. R. 0. STREB.

ADDING MACHINE. APPLIUATION FILED 5, 1906.

:2 SHEETSSHEET 1.

v 7%JF PATENTED SEPT. 8, 1908.

R. G. STREB. ADDING MACHINE APPLICATION FILED .IAN. 5, 1906.

2 SHEETSSHEET 2.

7% 615565 5 M 69M X -8ZW riixr ss r osrcsg RICHARD (J. STREB, OF BUFFALO, NEW YORK, ASSIGNOR TO BURROUGHS ADDING MACHINE I COMPANY, OF DETROIT, MICHIGAN, A CORPORATIQN OF MICHIGAN.

in); assess.

Anionic-Brno.

Patented. Sept. 8,1908.

Application filed 'zmusry 5, 1836. Serial Ho. 2%,772.

To all whom iii-may concern:

Be it known that I, Eiormnn C, STEEB, e citizen of the United States, residing st But tale, in the county of Erie and Stste oi. New

5 York, have invented certain new and useful Improvements in Adding-Machines, of which the following is s specification.

My invention relates to adding machines of that clsss'or type which are adopted to I 19 print, list sud accumulate individual items ,soend when the and to print the totsl thereof st the will of the operator, and which are provided with s. pspe'r support or platen to carry the paper receiving the impressions and err-er ed to he rocked or swung toward and swsly rrorn the printing mechanism. p

The object of my invention is to provide a. novel and efficient means, under the control of the movements of such paper support or 2o platen for controlling, in turn, the printing action of the printing; mechanism, with the result that by the provision of such means the printing mechanism is operative or inoperative acccrding to the particular position of the platen, that is to say, when the platen or psper support is in proper position to receive the impressions, the printing mech anism is operstive and the hammers ere cuipohle of delivering their blows upon the type cper sup ort or platen is swung rearwsr'ly away mm the printing position to a. non-printing position, the print ing mechanism is rendered inoperative end the hammers are arrested and thereby preivented from delivering their blows upon the ,45 fro'm the type.

In the present instance, I have shown and described my invention in connection with the Well knoWnBurroughs adding machine,

I constructed in substantial accordance with Burroughs Patents No.- 504,963 and 505,078,

. issued. on September 12, 1893,hut it will he understood that my invention is not limited thereto, but that it may he a plied to other machines of the some general charscter and used fill the some general purpose.

in the drawin s, Figure 1 is an elevation of s. crtion of the left hand side of a Burroughs s ding machine, with the attachment or improvements constituting my inventionup plied thereto; Fig. 2 a side elevation of the printing mechanism; Fig. 3 a. front elevation of a portion of such rin'ting mechanism the view being taken looliing tower-(ls the arrows in 2; and Fig. i a. view in perspective of the parts which directly cooperate with the hammer mechanism. I

in esmoch es the Burroughs adding machine is so well known and described in detail in ssid patents, and as my invention conrems the printing mechanism only and the control thereof by the paper support or platen, only such printing mechsnism sud paper support need he described for a complete understanding and comprehension oi my present invention.

As herein shown, Figs; 1 and 2, the movable type pistes 618, each bearing two t e, i are mounted to slide on the rearward ends of the series of msiin levers or sectors 611, which are hung upon the cross shaft 600 of the mochine, there being as many of these sectors as there ere denominations represented on the keyboard of the machine. As is well l-znoivn, the sectors are oscillated upwardly as to their rearward end distances according to the psrticuler keys depressed in their correspending rows or" ire s, with the result that the type corresponding in value to the keys depressed are presented to the printing line of the platen or paper support.

The hummer mechanism comprises 2 series of hsmmers 715, one for, each sector 611 sud ouch arranged to be driven in the. well known manner by its driver 716, through the medium of the stud 7 53, which is adapted to enter the slot 715 in its hammer. Each driver is restrained against rearward move ment towards which it is impelled by its spring 780 by means of a latch 717 mounted to oscillate and under the control of a. piv- 0 oted and slsoswinging pawl 718. In the operation of the machine the pawl 718 is rocked upwardly us to its rearward end by means of the inclined edge or shoulder 611 on the lower edge of its corresponding sector, unless such sector has been operated, that is. oscillsted upwsrrlly, in which event, the removal of such inclined shoulder from the path of movement of the tail of the pawl ermits its pawl to engage its latch and there y trip the driver and cause its hammer to deliver the blow. Ordinarily the drivers are tri pod and the hammers thereby caused to deliver their blows whenever an item is accumulated in the machine a a total is printed, re ardless of whether the paper support or platen is m a position to permit the aper thereon to'receive the impression, but it is the object the paper to the printing line and which is my attachment or improvements,

one which is pivotally connected with the, i ing arm thereof is in such position, as to be acted upon from the printing which 'As herein 8 own,

or frame 7-10 of the the drivers with a has a ten ency to which is pivotall mounted in a frame 1568 constituting a part of the usual laterally movable paper carriage. As is well known, the platen and its frame are arranged-to be rocked, reaiwardly on the shaft \or axis 1508 at which time the platen is'removed from printing position.

Referring now to the parts constituting I provide means for interfering with and arresting the hammer action, which means consists, in the present instance, of a swinging rod or hail A, is arranged to direct y cooperate with the drivers 7 16 and to enter notches 7 1 6 therein, when permitted by the moving or swinging of the laten, to a non-printing position. this rod or bail is a part of a frame having parallel arms a, a and pivoted at their upper ends to the parallel side plates printing mechansim. As the rod or bail is held towards ielding pressure by means the result that such hail move rearwardly andto thereby' engage the notches 716 of the drivers. For the purpose of controllingl the position and action of the rod or bar by means of the paper support or platen, I provide the left hand para lel arm a witha downherein shown,

of a sprin a, wit

I ward extension, and to the lower end of it a link C, the rear'end of connected with a bell crank D mounts to rock upon the cross shaft 1506 which carries the feed rollers 1535. The depending arm of this bell crank is the the forward end of link C, while the other or rearwardly extendby the frame 1568 of the platen. Thisrearwardly extending arm of t e bell crank is held depressed by the platen frame, whensuch platen is inits printing position, that is a position to receive the impressions mechanism of the adding machine as indicated in full lines in Fig, 1. This bell crank is thus held depressed against aiyielding pressure caused bythe spring a quently ing machine is placed which tends to ro ck the bell crank in a clockwise direction, ,with the result that-upon the rocking of the platen 'reaiwardly in the usual manner the hell crank and the operating connections governed thereby take the position indicated in dotted lines insaid Fig. 1.

When the hell crank is held in it's depressed position by the action of the platen frame, in

the maimer ust ex lained, the link C is to its forwar position, and consethe hail A moved thereby is held to a pos1tion of non interference with the drivers 716 Q so that the bail is held forwardl and away from the notches 716" of suc drivers. owev-er, just as soon as the platen and its frame are rocked rearwardly and. the restraint u on the bell crank thereby removed, the all A is by that act and in auto matic manner swung rearwardly to a position of interference with the drivers 716, inasmuch asisuch hail is thereby swung into the notches 716* of the drivers, as shown in dotted lines in Fi 1. It results from this latter'positicn of t is bail A that the drivers are prevented from moving upwardly as to their forward ends and from exerting any infl'u'ence upon the hammers whichremam in their normal position, as indicated in full lines in Fig. 1. The hammers are thus arrested or restrained from movement, being held in said normal position, notwithstanding the usual operation of the nitehine in ct ier respects because of the restraining and arresting of their drivers.- Justas soon as the platen and its frame are rocked hack to a position to receive printin mechanism oi the adding machine, the loci crank D is depressed, that is rocked in an anticlo ckwise direction, that the bail or rod A is by that act and in automatic manner, rocked forwardly to an inoperative position, so that the printirr mechanism will operate in the usual and we known manner.

By the means and in the manner ahm e described, the printing mechanism of the addunder the control of the paper support or platen upon whose poswung sition of printing or nonprinting the hammer action depends. Moreover, the means employed are verg simple and can be ap )llCd to the ordinary urroughs addii r machine, for instance as an attachment, wit iout alteration to the regular machine, except.- the forming of the notches 716 in the drivers.

I claim: i 1. In an adding machine, ti urination, with the printing mechanism, including ham- 1ners, ,'an with a paper support arranged to swing into "and out of position for receiving the im "ression impact, of means under the with the result contro of the paper support for preventing the movement of the hammers when the pa per support is out of position to receive inn )ressions from the rintin mechanism,

i D I 30 movement ;.40 movement of the drivers printing mechanism, .sai

' ljppQIi/IOI preventing themovement of e hammers"nnless"the paper support is in a" osition to receive im ressions from the means tending to prevent movement ofnthe hammers but restrained bytheLpaper support when in position to receive impressions.

- 3. In an addingmachine, the combination,

' with the printing mechanism, including hammere; an

with a'p'aper support arranged to SW1 g, of means under the control of the pa 1 35 with-the persupport for r'eventing the movement of the hammersun essthe paper support is in a position to receive im ressions from the printing mechanism; sai' means being spring pressed towards a position to prevent the with the moyejrnent of, the hammers but restrained by f the papersi'ipport when in position to receive impressions; i

4 In an d'ding machine, the combination, rinting mechanism having type, hammers or striking said type and drivers for suchhami'n'ers, and with a paper support arranged to swing, of means controlled by the papersnpportand arranged to arrest the of the drivers and thereby prevent hammer action unless the paper sup ort is in aposition to-receive impressions fi om the printing mechanism.

5. In an adding machine, the combination, rinting mechanism having type, hammers or striking said type and drivers for such hammers, and with a paper sup ort arranged to swing, of means controlled by the paper support and arranged to arrest the and thereby prevent hammer action unless the paper support is in a position to receive impressions U rom the printing mechanism, said means being held with a yieldin pressure towards a position to arrest such rivers but restrained for such hammers,

y the paper support.

6. In an adding machine, the combination,-

'with the rintin mechanism having type, hammers or stri ing said type and drivers and with a paper support arranged to swing, of means controlled by the paper support and arranged to arrest the movement of the drivers and thereby prevent hammer action unless the paper sup- 5 port is in a position to receive impressions pm the printing mechanism, and a spring tending to move said means to a position of interference with said drivers.

7. In an adding machine, the combination,

with the rinting mechanism having type,

hammers or striking said type and drivers for such hammers, and with a paper support arranged to swing, of means controller by the paper support and arranged to arrest the movement of the drivers and thereby prevent hammer actionunless the paper suport isin a, position to receive impressions 1 cm the printing mechanism, said means comprising a rod arran ed to be swung to a position to engage anr retain said driversqo against movement, and an operating connection between the rod and the paper support.

8; In an adding machine, the combination,

with the rintin mechanism having type,

hammers or stri'ing said type and drivers '75 for such hammers, and with a paper support arranged to swing, of a bail arranged to be swung to engage and retain said drivers, and an operating connection betweenthe bail and paper support. 0

9. In an adding machine, the combination, I with the rinting mechanism having type, hammers or striking saidtype. and drivers for such hammers, and with a paper support arranged to swing, said, drivers having "35 notches,oi a bail controlled by the paper I support and arranged to be swung to a position to engage in said notches and thereby prevent movement of the drivers.

10. In an adding machine, the combine Q tion, with the printing mechanism having: type, hammers for striking said type and; drivers for such hammers, and with a paper. f: support arranged to swing, of abail arranged to be swung to engage and retain said drivers and an operating connection'between' the bail and paper support comprising a bell crank ar-' i1 ranged to be rocked by the paper support" W when in position to receive impressions, and a link connected with said bail,

11'. In an adding machine, the combination, with the printing mechanism having type, hammers for striking said type and drivers for such hammers, and with a paper support arranged to swing, of a h d arranged to e swung to engage and retail .id drivers, and an operating connection beta Men the bail and paper support comprising a hell crank arranged to he rocked by the paper support when in position to receive impressions, and a no link connecting the bell crank and crank arm.

12. Inan adding machine, the combination, with the printing mechanism having type, hammers for striking said type am drivers for such hammers, and with a paper support arranged to swing, of a' bail arranged to be swung to en age and retain said drivers, and an operating connection between the bail and paper support com rising a bell crank, one of whose arms is eld witha yielding pressure in the path oi movement of the aper sup )ort when rocked, and connections )etween the bell crank and hail.

13. Inan adding machine, the combination, with the printing mechanism havin type, hammers for striking said type am drivers for such hammers, and with a paper su port arranged to swing, of a bail arranged to bc swung to engage and retain said drivers, and an operating connection between the bail and paper support comprising a bell crank,

one of.whose arms is spring pressed to a position in the path of movement of the paper an port when rocked, and a link between the be 1 crank and crank arm. 1

14. In an adding machine, the combination, with the-printing mechanism havin t pe, hammersfor striking said type an rivers for suchzhammers, and with a. paper. su port arranged to swm of a bail arranged to e swung to engage an retain sa'iddrivars 1 and an operating connection between, the bail and paper support comprising a bell crank hav ng one arm in the ath of movement of the paper support w en ro'cked, a.

link between the bell crank and the bail, and

a sprin connected with the bail tendingto move t e same to a osition to engage and prevent movement 0 the hammers.

15." In an adding machine, the combination, with the printing mechanism having type, hammers for striking said type and drivers for such hammers, and with a paper tion with the printing mechanism and with a paper support movable to and from a positiorifor receiving the printing impact of said mechanism, of means for blocking the latter when the paper support is out of position for receiving the impression impact.

17. In an adding machine, the combina-' tion with the printin mechanism and with a paper support-mova le to and from a position for receiving the printing impact of said mechanism, of means under the control of the aper support for blocking the printing mec 1anism when the paper support is o'ut of position to receive an impression from the printing mechanism. I I l 18. In an adding machine, the combination, with the printing mechanism and with a movable paper support, of means tending to block said printing mechanism to render it inoperative when the paper support is in position to receive an impression from the printing mechanism.

19. In an adding machine, the combination, with the printing mechanism and with a movable paper support, of means spring pressed to an operative position for blocking the printing mechanism to render it inoperative when the paper support is in position to receive an impression from the printing mechanism.

RICHARD C. STREB.

Witnesses:

THOMAS J. CAVANAUGH, H. J. AUL. 

